Rent vs Buy Calculator

Deciding whether to rent or buy is one of the biggest lifestyle and financial choices you will make. A rent vs buy calculator compares the monthly cash cost of renting against an estimated mortgage payment, giving you a clear starting point.

While buying builds equity over time, renting offers flexibility and lower upfront costs, so understanding the monthly trade-off helps you decide what fits your life.

Enter your current or expected monthly rent, the price of the home you would buy and the mortgage rate available to you.

The calculator assumes a 20% down payment over a 30-year term to estimate a principal-and-interest mortgage payment.

It compares that figure to your rent and tells you which is cheaper on a monthly basis.

Compare: Mortgage Payment(80% of price) vs Monthly Rent

The mortgage estimate covers principal and interest only.

Buying also involves property taxes, insurance, maintenance and the equity you build, which a pure monthly comparison does not capture.

• Renting at $1,800 versus buying a $320,000 home at 6.5% (20% down) gives a buy payment near $1,618, so buying is slightly cheaper monthly.
• A higher mortgage rate can quickly tip the balance back toward renting.

• Get a quick rent-versus-buy starting point.
• Compare monthly cash costs side by side.
• Test how mortgage rates change the decision.
• Frame a bigger conversation about equity and lifestyle.

To get reliable results from the Rent vs Buy Calculator, take a moment to gather accurate, up-to-date figures before you start. Small differences in the inputs you enter — an interest rate, a time horizon, or a contribution amount — can lead to meaningfully different outcomes, so it pays to be precise.

Treat the calculator as a planning aid rather than a crystal ball. Run several scenarios — an optimistic case, a conservative case, and something in between — so you understand the range of possibilities instead of fixating on a single number. Revisit your numbers periodically as your circumstances, rates, and goals change.

• Double-check that rates are entered as annual figures unless stated otherwise.
• Compare best-case and worst-case scenarios, not just the average.
• Account for fees, taxes and inflation where they apply to your situation.
• Re-run the numbers whenever your income, rates or goals change.

The most common error people make with any real estate calculator is entering inconsistent units — for example mixing monthly and annual figures, or confusing a nominal rate with an effective one. Read each field label carefully so your inputs line up.

Another frequent pitfall is treating a single estimate as a guarantee. Real-world results are shaped by factors a calculator cannot fully capture, including changing rates, fees, taxes and your own eligibility. Use the output as a well-informed estimate and confirm important decisions with a qualified professional.

The Rent vs Buy Calculator turns a handful of inputs into a clear, actionable result so you can plan with confidence. By understanding the formula behind it, experimenting with different scenarios, and avoiding the common mistakes above, you can use this real estate tool to make smarter, better-informed money decisions.

Remember that every result is an estimate for educational purposes. Pair what you learn here with the related calculators and guides on this page to build a fuller picture of your finances.